To distinguish yourself in a sea of tuxedos, add personalized touches like gemstone cufflinks, like these custom Jorge Adeler 18K white gold meteorite and diamond cufflinks and other styles, price on request. AdelerJewelers.com

A favorite of Catherine de Medici (the French queen is credited with wearing its first eau de cologne), Florentine pharmacy Santa Maria Novella has been crafting unique fragrances for more than 400 years. Santa Maria Novella Tabacco Toscano cologne, $125. Binns of Williamsburg, 757-229-3391

And for the gentlemen? “Everyone is going to the same places,” says Smith, who recommends vintage or specialty retailers for stand-out accessories; he prefers New York-based designer Michael Kaye Cravate for bow ties in unusual prints. “Find something that speaks to your character,” he says, like cufflinks crafted from your favorite gemstones. And of course, he adds, good tailoring is key: “If it’s off the rack, you should have it tweaked.” BinnsOnline.com